Depends what counts as a "date", really
It was a 'thing' at my school for a boy and girl to go to the local coffee shop, get a drink, then sit in the park or by the river together. The first time I did that I was about 15/16? They were never really called "dates" though.
I also had "dates" to the school dances, but again, they weren't anything official. Having a date didn't stop you dancing with other guys, and (at least in my and my friends' cases) didn't mean anything serious was going to happen afterwards, either.
The first time I had an actual official date, I was 18. It was just after I started university, and a cute guy in his second year asked me out to a local restaurant. It was a total disaster. He insisted on walking (about a mile and a half), which killed my feet in their pretty little sandals. Then he talked about himself all evening, barely letting me get a word in edgeways. He also laughed at me when I couldn't use chopsticks. (I'd never had to use them before). I ended up breaking it off early, and didn't go out with him again.